nissan calls it the magnetic switch assembly if we want to get technical. It is comprised of the solenoid and switch portion in one. The solenoid part is not engaged, but the switch part is. When it came down to it, my old starter still works, the new starter is screwed, and i got my truck running a few minutes ago. Sucks that it took so much work for an open ground connection, but that is life. Guess i need to get the new starter replaced now. I also learned the merits of a 2wd model for changing the starter. It is literally a 20 minute, or less, job without the front drive components to contend with.
-Dustin-